<template>
  <div class="app-container">
    <!--工具栏-->
    <div class="head-container">
      <div v-if="crud.props.searchToggle">
        <!-- 搜索 -->
        <el-input v-model="query.name" clearable size="small" placeholder="输入部门名称搜索" style="width: 200px;" class="filter-item" @keyup.enter.native="crud.toQuery" />
        <el-select v-model="query.enabled" clearable size="small" placeholder="状态" class="filter-item" style="width: 90px" @change="crud.toQuery">
          <el-option v-for="item in enabledTypeOptions" :key="item.key" :label="item.display_name" :value="item.key" />
        </el-select>
        <rrOperation />
      </div>
      <crudOperation :permission="permission" />
    </div>
      <el-dialog :close-on-click-modal="false" :before-close="crud.cancelCU" :visible.sync="crud.status.cu > 0" :title="crud.status.title" width="500px">
        <el-form ref="form" :model="form" :rules="rules" size="small" label-width="80px">
          <el-form-item label="名称" prop="name">
            <el-input v-model="form.name" style="width: 370px;" />
          </el-form-item>
          <el-form-item label="学生人数">
            <el-input v-model="form.studentCount" style="width: 370px;" />
          </el-form-item>
          <el-form-item label="培训期次">
            <el-select v-model="form.periodId" filterable placeholder="请选择" class="input" style="width: 370px;">
              <el-option
                v-for="item in periods"
                :key="item.periodId"
                :label="item.name"
                :value="item.periodId"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="状态">
            <el-radio v-model="form.enabled" v-for="item in dict.data_status" :key="item.id" :label="item.value">{{ item.label }}</el-radio>
          </el-form-item>
          <el-form-item label="备注">
            <el-input v-model="form.remark" :rows="3" type="textarea" style="width: 370px;" />
          </el-form-item>
        </el-form>
        <div slot="footer" class="dialog-footer">
          <el-button type="text" @click="crud.cancelCU">取消</el-button>
          <el-button :loading="crud.status.cu === 2" type="primary" @click="crud.submitCU">确认</el-button>
        </div>
      </el-dialog>
      <!--表格渲染-->
      <el-table ref="table" v-loading="crud.loading" :data="crud.data" size="small" style="width: 100%;"
		  row-key="classId"
		  @select="crud.selectChange"
		  @select-all="crud.selectAllChange"
	  	  @selection-change="crud.selectionChangeHandler">
        <el-table-column :selectable="checkboxT" type="selection" width="55" />
        <el-table-column prop="name" label="名称" />
        <el-table-column prop="studentCount" label="学生人数" width="100"/>
        <el-table-column prop="period.name" label="培训期次" />
		<el-table-column label="状态" align="center" prop="enabled">
			<template slot-scope="scope">
				<el-switch v-model="scope.row.enabled" active-color="#409EFF"
					inactive-color="#F56C6C" @change="changeEnabled(scope.row, scope.row.enabled,)" />
			</template>
		</el-table-column>
        <el-table-column prop="remark" label="备注" width="150"/>
        <el-table-column v-if="checkPer(['admin','class:edit','class:del'])" label="操作" width="150px" align="center">
          <template slot-scope="scope">
            <udOperation
              :data="scope.row"
              :permission="permission"
            />
          </template>
        </el-table-column>
      </el-table>
      <!--分页组件-->
      <pagination />
    </div>
  </div>
</template>

<script>
import crudClass from '@/api/class'
import CRUD, { presenter, header, form, crud } from '@crud/crud'
import rrOperation from '@crud/RR.operation'
import crudOperation from '@crud/CRUD.operation'
import udOperation from '@crud/UD.operation'
import pagination from '@crud/Pagination'
import { getPeriods } from '@/api/period'

const defaultForm = { classId: null, name: null, studentCount: null, periodId: null, enabled: 'true', remark: null }
export default {
  name: 'Class',
  components: { pagination, crudOperation, rrOperation, udOperation },
  mixins: [presenter(), header(), form(defaultForm), crud()],
  dicts: ['data_status'],
  cruds() {
    return CRUD({ title: '班级', url: 'api/class', idField: 'classId', sort: 'name,asc', crudMethod: { ...crudClass }})
  },
  data() {
    return {
	  periods: [],
      permission: {
        add: ['admin', 'class:add'],
        edit: ['admin', 'class:edit'],
        del: ['admin', 'class:del']
      },
      enabledTypeOptions: [
        { key: 'true', display_name: '正常' },
        { key: 'false', display_name: '禁用' }
      ],
      rules: {
        name: [
          { required: true, message: '名称不能为空', trigger: 'blur' }
        ]
      }    }
  },
  methods: {
    // 钩子：在获取表格数据之前执行，false 则代表不获取数据
    [CRUD.HOOK.beforeRefresh]() {
      return true
    },
    [CRUD.HOOK.afterToCU](crud, form) {
      // 加载培训期次信息
      this.periods = [] // 先清空之前的培训期次信息
      var params = { enabled: true }
      getPeriods(params).then(res => {
        this.periods = res.content
	    if(this.classId == null)
	      form.periodId = this.periods[0].periodId
      })
	  form.enabled = `${form.enabled}`
    },
	// 改变状态
	changeEnabled(data, val) {
		this.$confirm('此操作将 "' + this.dict.label.data_status[val] + '" ' + data.name + ' 班级, 是否继续？', '提示', {
			confirmButtonText: '确定',
			cancelButtonText: '取消',
			type: 'warning'
		}).then(() => {
			crudClass.edit(data).then(res => {
				this.crud.notify(this.dict.label.data_status[val] + '成功', CRUD.NOTIFICATION_TYPE
					.SUCCESS)
			}).catch(err => {
				data.enabled = !data.enabled
				console.log(err.response.data.message)
			})
		}).catch(() => {
			data.enabled = !data.enabled
		})
	},
	checkboxT(row, rowIndex) {
	  return row.classId !== 1
	}
  }
}
</script>

<style scoped>

</style>
